/*
 * The contents of this web application are subject to the Mozilla Public License Version 
 * 1.1 (the "License"); you may not use this web application except in compliance with 
 * the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/.
 * 
 * Software distributed under the License is distributed on an "AS IS" basis, 
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
 * for the specific language governing rights and limitations under the License.
 * 
 * The Original Code is owned by and the Initial Developer of the Original Code is 
 * Composite A/S (Danish business reg.no. 21744409). All Rights Reserved
 * 
 * Section 11 of the License is EXPRESSLY amended to include a provision stating 
 * that any dispute, including but not limited to disputes related to the enforcement 
 * of the License, to which Composite A/S as owner of the Original Code, as Initial 
 * Developer or in any other role, becomes a part to shall be governed by Danish law 
 * and be initiated before the Copenhagen City Court ("K�benhavns Byret")            
 */

using System;
using System.Linq;
using System.Collections.Generic;
using Composite.Data;


namespace Composite.Plugins.Data.DataProviders.XmlDataProvider
{
    internal sealed class XmlDataTypeStoresContainer
    {
        private readonly string _providerName;

        private readonly List<Type> _supportedInterface = new List<Type>();
        private readonly List<Type> _knownInterface = new List<Type>();
        private readonly List<Type> _generatedInterface = new List<Type>();

        // Data type -> XmlDataTypeStore
        private readonly Dictionary<Type, XmlDataTypeStore> _dataTypeStores = new Dictionary<Type, XmlDataTypeStore>();        


        public XmlDataTypeStoresContainer(string providerName)
        {
            _providerName = providerName;
        }


        /// <summary>
        /// All working data types 
        /// </summary>
        public IEnumerable<Type> SupportedInterface { get { return _supportedInterface; } }


        /// <summary>
        /// All data types, including non working due to config error or something else
        /// </summary>
        public IEnumerable<Type> KnownInterfaces { get { return _knownInterface; } }


        /// <summary>
        /// All working generated data types
        /// </summary>
        public IEnumerable<Type> GeneratedInterfaces { get { return _generatedInterface; } }



        public XmlDataTypeStore GetDataTypeStore(Type interfaceType)
        {
            XmlDataTypeStore result;

            if (_dataTypeStores.TryGetValue(interfaceType, out result) == false)
            {
                throw new ArgumentException(string.Format("The interface type '{0}' is not supported by the XmlDataProvider named '{1}", interfaceType, _providerName));
            }

            return result;
        }



        /// <summary>
        /// This method adds the support of the given data interface type to the xml data provider.
        /// </summary>
        /// <param name="interfaceType"></param>
        /// <param name="xmlDataTypeStore"></param>
        internal void AddSupportedDataTypeStore(Type interfaceType, XmlDataTypeStore xmlDataTypeStore)
        {
            _dataTypeStores.Add(interfaceType, xmlDataTypeStore);

            _supportedInterface.Add(interfaceType);
            AddKnownInterface(interfaceType);

            if (xmlDataTypeStore.IsGeneratedDataType)
            {
                _generatedInterface.Add(interfaceType);
            }
        }



        internal void UpdateSupportedDataTypeStore(Type interfaceType, XmlDataTypeStore xmlDataTypeStore)
        {
            Type type = _dataTypeStores.Where(f => f.Value.DataTypeDescriptor.DataTypeId == interfaceType.GetImmutableTypeId()).Select(f => f.Key).Single();
            _dataTypeStores.Remove(type);
            _dataTypeStores.Add(interfaceType, xmlDataTypeStore);

            _supportedInterface.Remove(type);
            _supportedInterface.Add(interfaceType);

            _knownInterface.Remove(type);
            _knownInterface.Add(interfaceType);
        }



        internal void AddKnownInterface(Type interfaceType)
        {
            _knownInterface.Add(interfaceType);
        }
    }
}
